Home / 5,396.24-7,447.38-3,158.84

Finding the Fourth Proportional to 5,396.24, 7,447.38 and 3,158.84

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Solution

The fourth proportional to 5,396.24, 7,447.38 and 3,158.84 is: 4,359.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.24 : 7,447.38 = 3,158.84 : x
  2. Step 2: Convert to fraction form
    5,396.24/7,447.38 = 3,158.84/x
  3. Step 3: Cross multiply
    5,396.24x = 7,447.38 × 3,158.84
  4. Step 4: Simplify right side
    5,396.24x = 23,525,081.84
  5. Step 5: Solve for x
    x = 23,525,081.84/5,396.24
  6. Step 6: Final answer
    x = 4,359.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.